| Trial Limited | Private company limited by shares | Live |
| AWARD TRIAL LIMITED | Private company limited by shares | Live |
| CLINICAL TRIAL CONCEPTS LIMITED | Private company limited by shares | Dissolved |
| Humanity & Health Clinical Trial Centre Limited | Private company limited by shares | Live |
| Advanced Clinical Trial Supply (H.K) Limited | Private company limited by shares | Live |
| Clinical Trial Magnifier Limited | Private company limited by shares | Live |
| TRIAL CREATION LIMITED | Private company limited by shares | Dissolved |
| TRIAL & ERROR LIMITED | Private company limited by shares | Live |
| Trial Marketing Limited | | Live |
| OCEAN TRIAL LIMITED | Private company limited by shares | Dissolved |
| Trial & Error Online Store Limited | | Live |
| PACIFIC TRIAL LIMITED | Private company limited by shares | Dissolved |
| SILVER TRIAL LIMITED | Private company limited by shares | Dissolved |
| SUNNY TRIAL LIMITED | Private company limited by shares | Live |
| TRIAL BEST TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Trial China Technology Co., Limited | Private company limited by shares | Live |
| TRIAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Trialogue Counselling (Hong Kong) Limited | Private company limited by shares | Live |
| TRI-ALPHA NETWORKS LIMITED | Private company limited by shares | Dissolved |